Could this be a self-inflicted bug? In that case, the broader point still stands: cloud providers can cause outages that are outside your direct realm of responsibility.
Your VPS server and your data center and the ISP your data center uses and the AS system your ISP uses all can cause outages outside your direct realm of responsibility.
Your VPS server and your data center and the ISP your data center uses and the AS system your ISP uses all can cause outages outside your direct realm of responsibility.